Volume · gal → L
US gallons to Litres
Enter any value below to convert us gallons to litres instantly.
To
1 gal = 3.785412 L
Conversion formula
How to convert gal to L
L = gal × 3.785412
Multiply the us gallons value by 3.785412 to get litres. The converter keeps extra precision internally and rounds only the displayed answer.
This conversion is useful for fuel economy, vehicle specifications, aquariums and liquid containers sold in the United States.
Worked example
Convert 10 gal10 gal = 37.854118 L
Calculated with the published formula. No estimated exchange rates or hidden rounding.
Common us gallons to litres values
| US gallons (gal) | Litres (L) |
|---|---|
| 1 gal | 3.785412 L |
| 5 gal | 18.927059 L |
| 10 gal | 37.854118 L |
| 25 gal | 94.635295 L |
| 50 gal | 189.270589 L |
| 100 gal | 378.541178 L |
Quick answer
How many litres are in one us gallon?
One us gallon equals 3.785412 L.